Oil Prices Touch 9-Month Highs

LONDON—Crude-oil futures climbed Monday on Iranian supply worries as Tehran threatened to halt oil exports to other European Union countries a day after it cut sales to U.K. and French companies.

Early afternoon in London, the front-month April Brent contract on the ICE futures exchange was up 65 cents, or 0.5%, at $120.23 a barrel. The U.S. crude front-month March contract was trading up $1.88, or 1.8%, at $105.48 a barrel in...